Antioxidant and Antiproliferative Potential of Bioactive Molecules Ursolic Acid and Thujone Isolated from Memecylon edule and Elaeagnus indica and Their Inhibitory Effect on Topoisomerase II by Molecular Docking Approach

Table 4

Nitric oxide radical scavenging activity of ursolic acid and thujone.

Concentration (µg/mL)	Nitric oxide radical scavenging activity (% of inhibition)
	Ursolic acid	Thujone	Ascorbic acid	BHA
20	|21.70 ± 0.25^a	14.25 ± 0.88^a	28.80 ± 1.21^a	30.26 ± 0.66^a
40	32.86 ± 0.32^b	29.61 ± 0.66^b	54.53 ± 0.91^b	41.23 ± 1.54^b
60	40.16 ± 0.34^c	39.55 ± 2.16^c	65.79 ± 0.96^c	53.58 ± 0.67^c
80	59.49 ± 0.18^d	51.24 ± 0.51^d	79.39 ± 1.22^d	65.35 ± 1.54^d
100	70.50 ± 0.39^e	74.12 ± 0.66^e	94.15 ± 1.13^e	87.28 ± 0.38^e

The values are mean of triplicates with (±) standard deviation (mean ± S.D; n = 3). Different superscript letters (a–e) in column within treatments indicates significant differences (at ) when subject to Tukey’s multiple comparison test.